The Estonian Web Archive is a digital archive that is being created by the National Library of Estonia with the aim of preserving websites that are significant from the point of view of Estonian cultural heritage. Pursuant to the National Library of Estonia Act, the National Library of Estonia has the obligation to collect, permanently preserve and make accessible items published in Estonian, in Estonia, and items about Estonia or containing information about Estonia. Web publications as items issued on the Web also belong to this category. The revised version of the Legal Deposit Act enforced on 1 June 2006 granted the National Library of Estonia entitlement to archive Web publications as legal deposits and make them publicly accessible. The owner of archived material has the right to restrict access to his or her publications. (More about Legal Deposit Act)

The archiving of Web publications (mainly in PDF format) in the digital archive DIGAR began in 2006; test archiving of websites started in 2008. The archive is open to the public since November 2013. It contains 1,6 TB of data (31 million URLs) collected from 2010 to the end of 2013. Due to the fact that only a small part of valuable sites can be gathered by the selection-based archiving, the test archiving of the entire Estonian Web domain started at the end of 2013.

There are three employees directly related to the web archive at the National Library of Estonia: two archiving specialists full time and one system administrator part time.

The working group developing the Estonian Web Archive, that currently includes 23 representatives from 11 institutions, involves specialists from Estonian research and memory institutions. The objective of the working group is to provide advice on choosing the material and making it accessible; the broad-based working group also represents the interests of current and future researchers. The working group has developed the document „Selection Principles for the Web Archive“ that was verified in 2011.